Improvement in weighing-scales



ILWILLARD. wmemm SCALES.

Patented Ju1yZ5.1876

mamas.

N. PETERS, PHOTO-LITHOGRAPHER WASHINGTON. D. C-

Unrrnn STATES PATENT CFFICE.

HUSEA WILLARD, OF VERGENNES,, VERMONT.

IMPROVEMENT IN WEIGHING-SCALE S.

Specification forming part of Letters Patent No. 180,298, dated J uly 25, 1876 application filed May 9, 1876.

To all whom it may concern:

Be it known that I, HOSEA WILLARD, of Vergennes, in the county of Addison and State of Vermont, have invented a new and Improved lVeighing-Scale, of which the following is a specification The object of my invention is to contrive a lever-and-beani scale in a simple way that will allow of being suspended for use, and at the same time will be efficient in operation.

Figure l is a sectional elevation of the case and side elevation of the lever contrivance. Fig. 2 is a front elevation of the scale. Fig. 3 is a horizontal section taken on lineman, Fig. 1. Fig. 4 is a horizontal section on line :1 y, Fig. 1. Fig. 5 is a sectional elevation taken on line 2 2, Fig. 2.

A is the main beam, which is pivoted to the frame B at O, and has the load-suspending rod D suspended from it at H, and at the same point is connected, by link F, with a second lever, G, pivoted to the frame at H, and arranged reversely to lever A. K represents intermediate levers pivoted to the frame at L, and suspended from levers A and G, respectively, by links M, one of which has a swiveljoint by which to adjust the levers. From levers K the forked beam-lever N, to which the weights are applied, is suspended by links P, said beam-lever being pivoted. to a bar, Q, by a center bolt, R, on which it is free to shift, to allow both forks of the beam-lever to act alike on levers K. The pivot S, by which the weight-hook T is suspended from the beamlever, is adjustable along said lever by adjusting-screw U, to set the weights for weighing gross or net weight. The main leverA has an arm, V, to which an adjustable counterbalance lever, VV, is connected, said lever be ing pivoted to the frame at X, and also connected to lever G by link Y. A toothed rod, a, is connected to beam-lever N, and geared with a pinion, b, in the center of a dial, (1, around which it moves a pointer, e, for recording fine weights. fis a ring by which the scale is suspended for use.

in practice, the lever will be made in one piece, of cast-iron, with a door at one side, affording access for adjusting the lovers.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. The levers A G, connected with adjusting-lever \V on opposite sides of its fulcrum, substantially as and for the purpose specified.

2. The forked beam-lever N, pivoted to the adjusting-bar Q, as described, in combination with intermediate levers K, substantially as specified.

3. The weight-hook pivot S, connected adjustably to the beam-lever, and provided with a shifting-screw to set the scale for net or gross weight, substantially as specified.

HOSEA WILLARD. Witnesses:

G. W. GRANDEY, G. R. CHAPMAN. 

